Question: Tell me psychoactive drug  whose name has the word opium  in it.
Paraphrase: Tell me a psychoactive medicine whose name contains the word opium.
SPARQL (Wikidata): SELECT DISTINCT ?sbj ?sbj_label WHERE { ?sbj wdt:P31 wd:Q3706669 . ?sbj rdfs:label ?sbj_label . FILTER(CONTAINS(lcase(?sbj_label), 'opium')) . FILTER (lang(?sbj_label) = 'en') } LIMIT 25 
Answer: opium, opium